if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { if (checkSelfPermission(Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_DENIED) { requestPermissions(new String[]{Manifest.permission.READ_PHONE_STATE}, REQUEST_READ_PHONE_STATE); } } UUID uuid = null; String androidId = Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID); if (androidId == null |..
